FR 420 then KL 651 at Schiphol
Dublin → Amsterdam → Washington
Timetable, Amsterdam time
16:10FR 420 from Dublin at the gate
13:20KL 651 to Washington leaves the gate
21 h 10 apart on the timetable, overnight
KL 651 leaves 21 h 10 after FR 420 arrives on the timetable: more than half a day, so not a connection we count.